實作一：基礎 HTTP 認識

import requests
web = requests.get('https://httpbin.org/anything/get?user=andy')
# web = requests.post('https://httpbin.org/anything/get?user=andy',data={'password':'hello'})

HTTP Request

來看看我們發了什麼 request 出去

http_request.png

web.request.__dict__
{'method': 'GET',
 'url': 'https://httpbin.org/anything/get?user=andy',
 'headers': {'User-Agent': 'python-requests/2.31.0', 'Accept-Encoding': 'gzip, deflate', 'Accept': '*/*', 'Connection': 'keep-alive'},
 '_cookies': <RequestsCookieJar[]>,
 'body': None,
 'hooks': {'response': []},
 '_body_position': None}

HTTP Response

我們收到了什麼 response 回來？

http_response.png

web.__dict__
{'_content': b'{\n  "args": {\n    "user": "andy"\n  }, \n  "data": "", \n  "files": {}, \n  "form": {}, \n  "headers": {\n    "Accept": "*/*", \n    "Accept-Encoding": "gzip, deflate", \n    "Host": "httpbin.org", \n    "User-Agent": "python-requests/2.31.0", \n    "X-Amzn-Trace-Id": "Root=1-651fbf3e-28c83809666b777a0471e1c7"\n  }, \n  "json": null, \n  "method": "GET", \n  "origin": "34.125.116.152", \n  "url": "https://httpbin.org/anything/get?user=andy"\n}\n',
 '_content_consumed': True,
 '_next': None,
 'status_code': 200,
 'headers': {'Date': 'Fri, 06 Oct 2023 08:03:10 GMT', 'Content-Type': 'application/json', 'Content-Length': '432', 'Connection': 'keep-alive', 'Server': 'gunicorn/19.9.0', 'Access-Control-Allow-Origin': '*', 'Access-Control-Allow-Credentials': 'true'},
 'raw': <urllib3.response.HTTPResponse at 0x79a2b9e65c30>,
 'url': 'https://httpbin.org/anything/get?user=andy',
 'encoding': 'utf-8',
 'history': [],
 'reason': 'OK',
 'cookies': <RequestsCookieJar[]>,
 'elapsed': datetime.timedelta(microseconds=325027),
 'request': <PreparedRequest [GET]>,
 'connection': <requests.adapters.HTTPAdapter at 0x79a2b9e67be0>}
web.json()
{'args': {'user': 'andy'},
 'data': '',
 'files': {},
 'form': {},
 'headers': {'Accept': '*/*',
  'Accept-Encoding': 'gzip, deflate',
  'Host': 'httpbin.org',
  'User-Agent': 'python-requests/2.31.0',
  'X-Amzn-Trace-Id': 'Root=1-651fbf3e-28c83809666b777a0471e1c7'},
 'json': None,
 'method': 'GET',
 'origin': '34.125.116.152',
 'url': 'https://httpbin.org/anything/get?user=andy'}

實作 server 的行為？！

input: 網址
output: 把 args 印出來

from urllib.parse import urlparse
url = input()
o = urlparse(url)
o.query
http://127.0.0.1/hello/?user=andy

'user=andy'

如果我想要根據不同路徑，來決定要回傳什麼呢？

url = input()
o = urlparse(url)
if o.path == '/hello':
  print(o.query)
elif o.path == '/world':
  print('world')
else:
  print('index')
http://127.0.0.1/world?user=andy
world